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Finding the Fourth Proportional to 70,476.72, 105,715.80 and 23,729.64

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Solution

The fourth proportional to 70,476.72, 105,715.80 and 23,729.64 is: 35,594.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,476.72 : 105,715.80 = 23,729.64 : x
  2. Step 2: Convert to fraction form
    70,476.72/105,715.80 = 23,729.64/x
  3. Step 3: Cross multiply
    70,476.72x = 105,715.80 × 23,729.64
  4. Step 4: Simplify right side
    70,476.72x = 2,508,597,876.31
  5. Step 5: Solve for x
    x = 2,508,597,876.31/70,476.72
  6. Step 6: Final answer
    x = 35,594.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.